ftdi: Implement high level FTDI d2xx support

This is extracted from github.com/periph/extra which never worked
properly.

Author: maruel

.gohci.yml

@@ -349,6 +349,11 @@ workers:
     - i2c-list
   - cmd:
     - spi-list
+#  - cmd:
+#    - periph-smoketest
+#    - ftdi
+#    - -type
+#    - ft232r
 
 # Laptop on Windows 10.
 - name: win10
@@ -421,3 +426,8 @@ workers:
     - i2c-list
   - cmd:
     - spi-list
+#  - cmd:
+#    - periph-smoketest
+#    - ftdi
+#    - -type
+#    - ft232h

ftdi/debian/98-ft232h.rules

@@ -0,0 +1,14 @@
+# Copyright 2017 The Periph Authors. All rights reserved.
+# Use of this source code is governed under the Apache License, Version 2.0
+# that can be found in the LICENSE file.
+
+# udev rule file to make FTDI devices accessible usable as non-root and disable
+# the ftdi_sio driver.
+#
+# See https://periph.io/device/ftdi/ for more information.
+
+# Make FTDI device usable from users in group plugdev.
+SUBSYSTEM=="usb", ATTRS{idVendor}=="0403", MODE="0664", GROUP="plugdev"
+
+# Disallow ftdi_sio from loading.
+SUBSYSTEM=="usb", DRIVER=="ftdi_sio", ATTRS{idVendor}=="0403", RUN+="/bin/sh -c 'echo $kernel > /sys/bus/usb/drivers/ftdi_sio/unbind'"